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How to install Redis for WordPress on FreeBSD

November 2, 2024 By Albert Valbuena

How to install Suricata on FreeBSD

February 7, 2020 By Albert Valbuena

Suricata is a free, open source, Intrusion Detection System software, or IDS for short. But it can also act as an Intrusion Prevention System, or IPS. It works by finding patterns using heuristics typically from network traffic. When configured to just warn about suspicious activity it is called an IDS, however when it blocks the […]

How to analyze suspicious email

May 20, 2020 By Albert Valbuena

Millions of emails are sent and received every day. Most of them are just junk. And many among those are potentially harmful. Phishing still is one of the most effective ways for malicious actors to penetrate into well secured networks. The weakest link, too often, is the human factor. Training can help mitigate this 24×7 […]

How to install Nagios on FreeBSD

January 8, 2018 By Albert Valbuena

As explained in an introduction article, Nagios is a monitoring software very well established and used in production on many environments. Results are displayed in a web page so it uses a web server to publish them to the user and needs some php code to do so. It is configured through files which happen […]

How to patch Spectre and Meltdown the ROM way

September 1, 2018 By Albert Valbuena

In a previous article I briefly, sort of, talked about the Spectre and Meltdown vulnerabilities. I have also written two guides to patch them from the OS side using a UNIX flavour from the BSD camp and a GNU/Linux distribution. Both actions resulted successful but there is a third way to patch this vulnerabilities. Regular […]

How to mitigate/solve the MDS vulnerabilities of Intel processors in FreeBSD

May 18, 2019 By Albert Valbuena

It had to happen again. Anyone betting on new hardware vulnerabilities on Intel processors would have won. This time these are called the MDS vulnerabilities, which stands for Microarchitectural Data Sampling. The trouble is the ones who would have really made big money would have been those stating the new CPUs were on the same […]

How to mitigate Spectre and Meltdown on a Lenovo T430s with FreeBSD

September 1, 2018 By Albert Valbuena

As recently announced in a previous article I wanted to write a couple of guides on how to mitigate Spectre and Meltdown vulnerabilities in GNU/Linux and UNIX environments. It is always a good and I hope a standard practice to have your systems patched and if they aren’t for whatever the reason (that legacy thing […]

How to install Ansible on FreeBSD

May 14, 2020 By Albert Valbuena

Ansible is a very useful tool geared to system’s configuration and applications deployment. In this how to install Ansible on FreeBSD I will briefly explain what the tool is, what it does, what it does not and how to install it on FreeBSD. I will also demonstrate very basic use and on a later article […]

How to install ModSecurity 3 on FreeBSD

March 1, 2021 By Albert Valbuena

A couple of years ago I wrote a guide on how to install Modsecurity on FreeBSD. Now the program is on its third iteration so a new article is needed. Or so I think. In this article I’ll be covering Modsecurity 3 applied to protect Apache HTTP. If you find the articles in Adminbyaccident.com useful […]

How to install software in FreeBSD with pkgng

April 25, 2017 By Albert Valbuena

The pkgng is the package management system in FreeBSD. It is used to install applications, and specific modules, libraries, etc. Nowadays you can select in between more than 25.000 thousand. Yes, twenty five thousand. The syntax to use is very intuitive and simple. As you may be already aware software comes in two forms. Source […]

How to load and unload kernel modules in Linux

May 15, 2023 By Albert Valbuena

Kernel modules permit enabling hardware features on a given system. For example, if we need to read from a particular filesystem from a hard drive, we need to load a particular kernel module. Or use a specific network card, a sound card or sound device, a video display, etc. This is mostly done automatically in […]

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  • How to install Redis for WordPress on FreeBSD
  • How to compile cloudflared in FreeBSD 13/14
  • How to configure FreeBSD to use a webcam (version 12 and 13)
  • Symbolic and Hard Links in UNIX and Linux
  • How to import iocage jails to Bastille on FreeBSD 13
  • How to load and unload kernel modules in Linux
  • How to use find in GNU/Linux and FreeBSD
  • How to install Mate on FreeBSD 12/13
  • How to install Nessus 10 on FreeBSD 12
  • How to enable TLS traffic from the origin server on Cloudflare Argo Tunnel

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